Sheet-turner



w. A. LUCKE.

SHEET TURNER.

APPLICATION FILED OCT. 21, 1920.

1,392,185. -PatentedSept .'27, 1921.

Ami/mm WITNESSES PATENT OFFICE.

WILLIAMA. LUGKE, or new Yonmn. Y,

SHE T-TURNER;

I p n of i f t Patented Sept. 27, 1921.

l pplication'filed' October 21,1920. seriai No.*41 s,4o3.

With this in view,iI have devised asheet.

turner, more particularly adapted for use in connection with instruments,by means of which it willbe possible for the operator to effect a turning of a sheet of music without any delay, and-confusion, which has been incident to this procedure before.

A further object-of my invention is the construction of a device of this nature, which shallrbe practically automatic, in operation, in that it will be butnecessary for a performer to exert a minimum of effortto effect a turning of the sheet. v

A still further obj ect of my invention is the constructionof a device of thisgnature which may beof any size and material, so that the same may lend itself to use in connection with any type of instrument, and

at the same time be so simple in. construcnominal figure. t

A further objectof myi-mvention. is the construction of a. sheet jturner, which although 'primarilyintended for use inconnection with the turning ofsheets, of mus c,-

is not necessarily limited to this adaptation, in that it may be readily utilized for turning theleaves of a book, or for any. other purpose. 1:

Reference is had to the attached sheet of drawings as illustrating one practical embodiment of my invention, and in which- Figure 1 is a partly fragmentary front view of one form of sheet turner which may be constructed in accordance with my invention. v

Fig. 2 is a partly sectional plan view taken along the lines 2-2 of Fig. 1, and

Fig. 3 is an enlarged sectional view take along the lines 33 of Fig. 1.

In these views the reference numeral 5 indicates longitudinally extending bars, suitably spaced from each other, and connected together by side members 6, so as to provide a space 7 Itis to be a preciated that the framework aforedescribed may-be of any suitable artistic type, if this is desired, together with being of any optional material and size, according to the necessities of its use, with any .particular instrument.

A pair of cross bars 8 are conveniently provided between the upper and lower most pairs of bars 5, and preferably intermediate the extremities of the same. Any suitable number of shafts 9, are rotatably mounted within the cross bars 8, audit is to be noted that the upper ends of the series of shafts mounted between these cross bars in preferably extended outwardly, as has been indicated by the reference'numeral 10, the outer end portions'of the sam projecting downwardly as at 11. r

Suitable clips 12, are secured to each of the downwardly extending portions 11, and it will be appreciated that if sheets of paper are secured adjacent their outer edges, oneto each of the clips 12, that upon a rotation of one of the shafts 9, that a turning of the sheet will be effected.

To now effect a rotation of each of the shafts, itwill be noted,reference'being had to Fig. 1, that a spring 13 is conveniently associated with the same, one end'of the c spring being preferably secured to the cross tion as .to permit of its being retailed at a.

bars 8, the opposite end thereof being secured to one of the I shafts 9, the body portionof such springbeing coiled around the shaft 9, thus upon any restraining influence being removedifrom the shaft, it will be appreciated that the same will automatically rotate, carrying the sheet of'paper, which is associatedto its clip 12. i i

To provide meanswhich-will serve to prevent arotationof each of the shafts 9, until it-is desired that the same will turn, as will be seen reference being had to Figs. 1 and 2, that a second cross bar 14 may conveniently extend between the lower most of the spacedbars 5, and slidably mounted by this cross bar, and an upper turning portion of the lowermost cross bar 8, are a serles of plungers 15, each of which is held in a normally projected position by means of springs 16. r a t It is also to be noted that the outer ends of each of the plungers 15, engage with stops 17 aflixed to one of each of the shafts 9. Thus it will be seen that upon the plungers being projected by the springs 16, that a prevention of the turning on the part of the shafts 9 will be accomplished.

A series of crank shafts 18 corresponding in number to the number of shafts 9 provided, are rotatably mounted in the form shown, between the lower most pair of spaced bars 5, and each of these crank shafts may be turned by any suitable means, such as a finger portion 19 extendin beyond the forward bar 5. Connecting ro s 20 are also suitably interposed between the crank portiton of each of the shafts 18, and the inner ends of the plungers 15, so as to provide a connecting medium. 7

Thus it will be seen that each of the shafts 9 will be normally prevented from rotating, but that these members may be actuated in V the manner desired, upon the finger pieces 19 being operated to effect a rotation of their associated shaft 18, to permit of a retraction of the connected plunger 15, which will then disengage from the stop 17 against which it abuts,thus permitting of a rotation of the shaft with which said stop is associated.

From the foregoing it will be appreciated that I have constructed a sheet turner which will be practically automatic in operation, in that it will be but necessary to practically touch one of the finger pieces 19 to effect a turning of the sheet, desired, thus permitting the performer to read the characters upon the rear face of the sheet with practically no delay.

It will further be seen that a sheet turner constructed in accordance with my invention will be extremely simple in construction, thus permitting of its being placed upon the market at a very low figure.

Obviously numerous structure might readily be resorted to without in the least departing from the spirit of my invention, which I claim as- 1. A sheet turner, including pairs of spaced bars, cross bars extending between said pairs of bars, shafts rotatably mounted within said cross bars, and having their upper. ends extending outwardly beyond the same, a spring for each of said shafts, said spring having one'of its ends secured thereto, its body en- 7 circling the same, and having its "opposite modifications of end secured to said cross bars, whereby to effect a turning of said shaft, plungers slidably secured to the second of said cross bars, stops aflixed to each of said shafts, and in line with the outer ends of said plungers, and normally engaged thereby, and means for effecting a retraction of said plungers.

2. A sheet turner, including pairs of spaced bars, cross bars extending between said pairs of bars, shafts rotatably mounted within said cross bars, and having their upper ends extending outwardly beyond the same, a spring for each of said shafts, said spring having one of its ends secured thereto, its body encircling the same, and having its opposite end secured to said cross bars, whereby to effect a turning of said shaft, plungers slidably secured to the second of said cross bars, springs for normally proj ecting said plungers to permit of their engagement with the sto secured to each of said shafts for preventing a rotation of the same, crank shafts rotatably mounted between one of the pairs of bars, and connecting rods extending between said crank shaft and the rear ends of said plungers.

3. A sheet turner, including pairs of spaced bars, cross bars extendin between said pairs of bars, shafts rotatably mounted within said cross bars, and having their upper ends extending outwardly beyond the same, a spring for each of said shafts, said spring having one of its ends secured thereto, its body encircling the same, and having its opposite end secured to said cross bars, whereby to effect a turning of said shaft, plungers slidably secured to the second of said cross bars, springs for normally projecting said plungers to permit of their engagement with the stop secured to each of said shafts for preventing a rotation of the same, crank shafts rotatably mounted between one of the pairs of bars,connecting rods extending between said crank shaft and the rear ends of said plungers, said crank shafts being each provided with finger pieces to permit a rotation of the same.

WILLIAM A. LUCKE. 

